Spoiler! Proceed with caution.
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While traveling through endless loops in time, she gets basically ptsd and thinks the root of why she dies everytime is her failure to protect her sister. She suffers a lot but in the end all she wants was her parents love. It's a bit messy but, in the end she does have someone by her side. If you want I could spoil the whole thing with her ending :) But its really a twisted story hahah leaves you with that large hit of angst.
But she does discover her mother loved her in a sense, but never got the chance to express it as she was portraying hate on her little sister by drugging and poisoning her to keep her in the estate and away from society. But I 100% encourage you to read to novel.
My heart absolutely sunk when I stumbled across this. I've read the spoilers, braced myself to dive in after finishing the 5 chapters that are here. Read the novel and balled my eyes out countless times over and over, this has been a roller coaster. I really wish the translation for the novel was being updated but the status is unknown for now. But my dear god, I wish I could just kill. Like she doesn't deserve all of this pain, this is a really well written piece by a first class sadistic author, and they did not disappoint in stirring up my heart making me want to riot and storm.